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Diesel particulate filter (DPF) regeneration by electrical heating of resistive coatings

Patent ·
OSTI ID:985547
An exhaust system that processes exhaust generated by an engine includes a diesel particulate filter (DPF) that is disposed downstream of the engine and that filters particulates from the exhaust. An electrical heater is integrally formed in an upstream end of the DPF and selectively heats the exhaust to initiate combustion of the particulates within the exhaust as it passes therethrough. Heat generated by combustion of the particulates induces combustion of particulates within the DPF.
Research Organization:
GM Global Technology Operations, Inc. (Detroit, MI)
Sponsoring Organization:
USDOE
DOE Contract Number:
FC04-03AL67635
Assignee:
GM Global Technology Operations, Inc. (Detroit, MI)
Patent Number(s):
7,469,532
Application Number:
US patent applicaton 11/233,450
OSTI ID:
985547
Country of Publication:
United States
Language:
English

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